I was trying to understand how to use sensei with the raspa_gpio hardware frontend. The description sounds perfect to connect to a Raspberry PI pico as a controller for the hardware.
However there is not much mentioned about how it connects to the controller in
When starting sensei with “raspa_gpio” hw frontend I get the follwoing error:
[2023-04-07 17:30:05.371] [error] [gpio_hw_socket] Failed to connect to Gpio Hw socket: No such file or directory [2023-04-07 17:30:05.371] [warning] [gpio_hw_frontend] Failed sending packet to hw backend [2023-04-07 17:30:05.621] [warning] [gpio_hw_socket] Sending packet on socket failed -1, Attempting to reconnect to socket..,
reading a the source code I found that it tries to connect to a socket on /tmp/raspa
However, I could not figure out which component would then be on the other side of the socket. Would it be possible to communicate via SPI to a microcontroller?